Percentile Calculator

A percentile indicates the relative position of a value within a dataset. If you score at the 80th percentile, it means 80% of scores fall below yours

The calculator uses the standard published formula for percentile indicates the relative position of a value within a dataset. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: To find the value at a percentile p: L = (p/100) × n, then interpolate. Each step in the calculation is shown so you can verify the result manually.